Multi Panel Display Bezel Elimination via Image Shift Film Refraction
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Solution Overview
Problem
Multi panel display devices face challenges in creating a large screen with connected liquid crystal panels due to the visibility of bezels and edge image distortion, especially when using optical lenses, which are difficult to fix and can degrade image quality, especially in larger formats like flat TVs.
Innovation Solution
The use of image shift films with first and second bevels, where the first bevels are transparent and the second bevels are opaque, are disposed above liquid crystal panels to refract light and eliminate the visibility of bezels, allowing images to be displayed on non-display areas without distortion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If optical lenses are disposed on liquid crystal panels to remove bezel visibility, then the bezel black lines are reduced, but the image quality deteriorates due to edge image distortion and the devices are difficult to fix
Solution Approach 1:
The optical lens is divided into multiple segments: a first optical lens corresponding to the image display area and a second optical lens corresponding to the bezel area. This segmentation allows each lens portion to be optimized independently - the first lens for image quality and the second lens for bezel coverage, resolving the contradiction between removing bezel visibility and maintaining image quality
Solution Approach 2:
Different regions of the optical system are assigned different functions and properties. The first optical lens region is optimized for image display with appropriate curvature and refractive properties, while the second optical lens region is optimized for covering the bezel area. This local differentiation eliminates edge distortion in the image area while still providing bezel coverage
2Area of stationary object
If a large flat panel display is used to achieve a large screen, then the screen size increases, but the bezel area and lens thickness increase making it inapplicable
Solution Approach 1:
The display panel is segmented into image display areas and bezel areas, with corresponding segmented optical lenses. This allows the optical system to scale with large screen sizes without requiring a single thick lens, as each segment can be independently optimized for thinner profiles
Solution Approach 2:
The optical lens is positioned at a distance from the liquid crystal panel rather than being in direct contact, creating a spatial separation that allows for thinner overall device profile while maintaining optical effectiveness across large screen areas
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution effectively removes the appearance of bezels and virtual images, enabling high-definition image display across multiple connected liquid crystal panels by controlling light paths and refractive indices, improving image quality and mobility.
Implementation Method 1
since the light is refracted in a specific direction through curved portions of the optical lenses (not shown) and then passes through the lenses, it is also transmitted toward the curved portions of the optical lenses (not shown) disposed on the bezels (not shown), non-display areas
Implementation Method 2
image shift films disposed above each of the liquid crystal panels with being spaced therefrom by a specific distance and connected to each other at positions adjacent to each other respectively have first and second bevels disposed to be symmetrical to each other, wherein the first and second bevels are repeatedly formed to face the display panels
Data Source
AI summary
Disclosed is a multi panel display device comprising, at least two liquid crystal panels connected to each other at positions adjacent to each other and respectively composed of image display portions and non-display portions; and image shift films disposed above each of the liquid crystal panels with being spaced therefrom by a specific distance and connected to each other at positions adjacent to each other respectively have first and second bevels disposed to be symmetrical to each other, wherein the first and second bevels are repeatedly formed to face the display panels.